Background image for monsters stop motion film [Artist for hire]

Fantasy world background art for a scene in a future stop animation feature film involving skeleton monsters, two lovers who go on an emotional journey and fantastic fight scenes. This is the finished image, created using 3D and post paint work (click to zoom):

To share with you some of the process during the development of the above image. First step, a quick thumbnail sketch to show the layout of the image:

Next step, the creation of a concept image:

Based on the concept image, and some feedback on it (like to have more lava and less grass), the actual image was created using multiple renders: lava render layers, grass, rocks, trees and other layers, then composited and edited, plus a lot of retouch and painting work to finish of the final image: